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Finding the Fourth Proportional to 720,617.80, 994,346.04 and 410,523.16

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Solution

The fourth proportional to 720,617.80, 994,346.04 and 410,523.16 is: 566,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,617.80 : 994,346.04 = 410,523.16 : x
  2. Step 2: Convert to fraction form
    720,617.80/994,346.04 = 410,523.16/x
  3. Step 3: Cross multiply
    720,617.80x = 994,346.04 × 410,523.16
  4. Step 4: Simplify right side
    720,617.80x = 408,202,078,474.29
  5. Step 5: Solve for x
    x = 408,202,078,474.29/720,617.80
  6. Step 6: Final answer
    x = 566,461.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.